1. Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (D.S., M.S., B.K.N., H.S.G.).
2. Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor (D.S., J.M.D., A.M.R., B.K.N.),
3. Michigan Value Collaborative, University of Michigan, Ann Arbor (J.M.D., J.D.S.).
4. Dow Division of Health Services Research, Department of Urology, University of Michigan, Ann Arbor (J.M.D.).
5. Department of Health Management and Policy, University of Michigan School of Public Health, Ann Arbor (A.M.R.).
6. University of Michigan Center for Evaluating Health Reform, Ann Arbor (A.M.R.).
7. Michigan Integrated Center for Health Analytics and Medical Prediction, Ann Arbor (B.K.N.).
8. Division of Cardiovascular Medicine, Department of Internal Medicine, VA Ann Arbor Healthcare System, Ann Arbor (B.K.N., H.S.G.).